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Why is dihydrogen not preferred in weath...

Why is dihydrogen not preferred in weather balloons these days?

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Dihydrogen is highly combustible and hence is likely to catch fire in excess of air (oxygen).
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CENGAGE CHEMISTRY-APPENDIX - INORGANIC VOLUME 1-Exercise Short
  1. What is the product of the reaction between benzene and H(2)O(2)?

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  2. Which isotope of hydrogen (a) does not contain neutron, (b) contains e...

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  3. Why is dihydrogen not preferred in weather balloons these days?

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  4. Name two compounds which retard the decomposition of H(2)O(2).

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  5. What do you mean by 15 volume H(2)O(2) solution?

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  6. Give an example of a compound in which hydrogen exists in (a) +1, (b) ...

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  7. Can marine species live in distilled water?

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  8. Give an example of (i) ionic hydride, (ii) covalent hydride.

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  9. Why oxide ion is called a hard ion?

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  10. How is D(2)O(2) prepared?

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  11. Complete the following: CaC(2)+2D(2)Oto?

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  12. 10 mL of a given solution of H(2)O(2) contains 0.91 g of H(2)O(2). Exp...

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  13. In some toothpastes hydrogen peroxide is used. What is the role of H(2...

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  14. What is Fenton's reagent?

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  15. What is perhydrol? Give its composition and use.

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  16. Explain why calcuim ion makes water hard, but sodium ion does not.

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  17. Name the alkali metals which do not combine directly with nitrogen.

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  18. What is the order of reactivity of alkali metals towards hydrogen?

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  19. Arrange the alkali metals in increasing order of their density.

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  20. Which among Na,K,Cs and Li forms most stable hydride?

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